diff options
Diffstat (limited to 'drivers/net/wireless/hostap/hostap_hw.c')
| -rw-r--r-- | drivers/net/wireless/hostap/hostap_hw.c | 211 |
1 files changed, 11 insertions, 200 deletions
diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c index dc31f5351b36..30c215106714 100644 --- a/drivers/net/wireless/hostap/hostap_hw.c +++ b/drivers/net/wireless/hostap/hostap_hw.c @@ -83,18 +83,6 @@ static int dtim_period[MAX_PARM_DEVICES] = { 1, DEF_INTS }; module_param_array(dtim_period, int, NULL, 0444); MODULE_PARM_DESC(dtim_period, "DTIM period"); -#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) -static int bus_master_threshold_rx[MAX_PARM_DEVICES] = { 100, DEF_INTS }; -module_param_array(bus_master_threshold_rx, int, NULL, 0444); -MODULE_PARM_DESC(bus_master_threshold_rx, "Packet length threshold for using " - "PCI bus master on RX"); - -static int bus_master_threshold_tx[MAX_PARM_DEVICES] = { 100, DEF_INTS }; -module_param_array(bus_master_threshold_tx, int, NULL, 0444); -MODULE_PARM_DESC(bus_master_threshold_tx, "Packet length threshold for using " - "PCI bus master on TX"); -#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ - static char dev_template[16] = "wlan%d"; module_param_string(dev_template, dev_template, sizeof(dev_template), 0444); MODULE_PARM_DESC(dev_template, "Prefix for network device name (default: " @@ -107,12 +95,6 @@ MODULE_PARM_DESC(dev_template, "Prefix for network device name (default: " #define EXTRA_EVENTS_WTERR HFA384X_EV_WTERR #endif -#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) -#define EXTRA_EVENTS_BUS_MASTER (HFA384X_EV_PCI_M0 | HFA384X_EV_PCI_M1) -#else -#define EXTRA_EVENTS_BUS_MASTER 0 -#endif - /* Events that will be using BAP0 */ #define HFA384X_BAP0_EVENTS \ (HFA384X_EV_TXEXC | HFA384X_EV_RX | HFA384X_EV_INFO | HFA384X_EV_TX) @@ -121,7 +103,7 @@ MODULE_PARM_DESC(dev_template, "Prefix for network device name (default: " #define HFA384X_EVENT_MASK \ (HFA384X_BAP0_EVENTS | HFA384X_EV_ALLOC | HFA384X_EV_INFDROP | \ HFA384X_EV_CMD | HFA384X_EV_TICK | \ - EXTRA_EVENTS_WTERR | EXTRA_EVENTS_BUS_MASTER) + EXTRA_EVENTS_WTERR) /* Default TX control flags: use 802.11 headers and request interrupt for * failed transmits. Frames that request ACK callback, will add @@ -1827,34 +1809,6 @@ static int prism2_transmit(struct net_device *dev, int idx) } -#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) -/* Called only from hardware IRQ */ -static void prism2_tx_cb(struct net_device *dev, void *context, - u16 resp0, u16 res) -{ - struct hostap_interface *iface; - local_info_t *local; - unsigned long addr; - int buf_len = (int) context; - - iface = netdev_priv(dev); - local = iface->local; - - if (res) { - printk(KERN_DEBUG "%s: prism2_tx_cb - res=0x%02x\n", - dev->name, res); - return; - } - - addr = virt_to_phys(local->bus_m0_buf); - HFA384X_OUTW((addr & 0xffff0000) >> 16, HFA384X_PCI_M0_ADDRH_OFF); - HFA384X_OUTW(addr & 0x0000ffff, HFA384X_PCI_M0_ADDRL_OFF); - HFA384X_OUTW(buf_len / 2, HFA384X_PCI_M0_LEN_OFF); - HFA384X_OUTW(HFA384X_PCI_CTL_TO_BAP, HFA384X_PCI_M0_CTL_OFF); -} -#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ - - /* Send IEEE 802.11 frame (convert the header into Prism2 TX descriptor and * send the payload with this descriptor) */ /* Called only from software IRQ */ @@ -1920,53 +1874,6 @@ static int prism2_tx_80211(struct sk_buff *skb, struct net_device *dev) spin_lock(&local->baplock); res = hfa384x_setup_bap(dev, BAP0, local->txfid[idx], 0); -#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) - if (!res && skb->len >= local->bus_master_threshold_tx) { - u8 *pos; - int buf_len; - - local->bus_m0_tx_idx = idx; - - /* FIX: BAP0 should be locked during bus master transfer, but - * baplock with BH's disabled is not OK for this; netif queue - * stopping is not enough since BAP0 is used also for RID - * read/write */ - - /* stop the queue for the time that bus mastering on BAP0 is - * in use */ - netif_stop_queue(dev); - - spin_unlock(&local->baplock); - - /* Copy frame data to bus_m0_buf */ - pos = local->bus_m0_buf; - memcpy(pos, &txdesc, sizeof(txdesc)); - pos += sizeof(txdesc); - memcpy(pos, skb->data + hdr_len, skb->len - hdr_len); - pos += skb->len - hdr_len; - buf_len = pos - local->bus_m0_buf; - if (buf_len & 1) - buf_len++; - -#ifdef PRISM2_ENABLE_BEFORE_TX_BUS_MASTER - /* Any RX packet seems to break something with TX bus - * mastering; enable command is enough to fix this.. */ - if (hfa384x_cmd_callback(dev, HFA384X_CMDCODE_ENABLE, 0, - prism2_tx_cb, (long) buf_len)) { - printk(KERN_DEBUG "%s: TX: enable port0 failed\n", - dev->name); - } -#else /* PRISM2_ENABLE_BEFORE_TX_BUS_MASTER */ - prism2_tx_cb(dev, (void *) buf_len, 0, 0); -#endif /* PRISM2_ENABLE_BEFORE_TX_BUS_MASTER */ - - /* Bus master transfer will be started from command completion - * event handler and TX handling will be finished by calling - * prism2_transmit() from bus master event handler */ - goto tx_stats; - } -#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ - if (!res) res = hfa384x_to_bap(dev, BAP0, &txdesc, sizeof(txdesc)); if (!res) @@ -2107,50 +2014,18 @@ static void prism2_rx(local_info_t *local) skb->dev = dev; memcpy(skb_put(skb, hdr_len), &rxdesc, hdr_len); -#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) - if (len >= local->bus_master_threshold_rx) { - unsigned long addr; - - hfa384x_events_no_bap1(dev); - - local->rx_skb = skb; - /* Internal BAP0 offset points to the byte following rxdesc; - * copy rest of the data using bus master */ - addr = virt_to_phys(skb_put(skb, len)); - HFA384X_OUTW((addr & 0xffff0000) >> 16, - HFA384X_PCI_M0_ADDRH_OFF); - HFA384X_OUTW(addr & 0x0000ffff, HFA384X_PCI_M0_ADDRL_OFF); - if (len & 1) - len++; - HFA384X_OUTW(len / 2, HFA384X_PCI_M0_LEN_OFF); - HFA384X_OUTW(HFA384X_PCI_CTL_FROM_BAP, HFA384X_PCI_M0_CTL_OFF); - - /* pci_bus_m1 event will be generated when data transfer is - * complete and the frame will then be added to rx_list and - * rx_tasklet is scheduled */ - rx_pending = 1; - - /* Have to release baplock before returning, although BAP0 - * should really not be used before DMA transfer has been - * completed. */ - spin_unlock(&local->baplock); - } else -#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ - { - if (len > 0) - res = hfa384x_from_bap(dev, BAP0, skb_put(skb, len), - len); - spin_unlock(&local->baplock); - if (res) { - printk(KERN_DEBUG "%s: RX failed to read " - "frame data\n", dev->name); - goto rx_dropped; - } - - skb_queue_tail(&local->rx_list, skb); - tasklet_schedule(&local->rx_tasklet); + if (len > 0) + res = hfa384x_from_bap(dev, BAP0, skb_put(skb, len), len); + spin_unlock(&local->baplock); + if (res) { + printk(KERN_DEBUG "%s: RX failed to read " + "frame data\n", dev->name); + goto rx_dropped; } + skb_queue_tail(&local->rx_list, skb); + tasklet_schedule(&local->rx_tasklet); + rx_exit: prism2_callback(local, PRISM2_CALLBACK_RX_END); if (!rx_pending) { @@ -2654,36 +2529,6 @@ static void hostap_bap_tasklet(unsigned long data) } -#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) -/* Called only from hardware IRQ */ -static void prism2_bus_master_ev(struct net_device *dev, int bap) -{ - struct hostap_interface *iface; - local_info_t *local; - - iface = netdev_priv(dev); - local = iface->local; - - if (bap == BAP1) { - /* FIX: frame payload was DMA'd to skb->data; might need to - * invalidate data cache for that memory area */ - skb_queue_tail(&local->rx_list, local->rx_skb); - tasklet_schedule(&local->rx_tasklet); - HFA384X_OUTW(HFA384X_EV_RX, HFA384X_EVACK_OFF); - } else { - if (prism2_transmit(dev, local->bus_m0_tx_idx)) { - printk(KERN_DEBUG "%s: prism2_transmit() failed " - "when called from bus master event\n", - dev->name); - local->intransmitfid[local->bus_m0_tx_idx] = - PRISM2_TXFID_EMPTY; - schedule_work(&local->reset_queue); - } - } -} -#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ - - /* Called only from hardware IRQ */ static void prism2_infdrop(struct net_device *dev) { @@ -2852,21 +2697,6 @@ static irqreturn_t prism2_interrupt(int irq, void *dev_id, struct pt_regs *regs) HFA384X_OUTW(HFA384X_EV_TICK, HFA384X_EVACK_OFF); } -#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) - if (ev & HFA384X_EV_PCI_M0) { - prism2_bus_master_ev(dev, BAP0); - HFA384X_OUTW(HFA384X_EV_PCI_M0, HFA384X_EVACK_OFF); - } - - if (ev & HFA384X_EV_PCI_M1) { - /* previous RX has been copied can be ACKed now */ - HFA384X_OUTW(HFA384X_EV_RX, HFA384X_EVACK_OFF); - - prism2_bus_master_ev(dev, BAP1); - HFA384X_OUTW(HFA384X_EV_PCI_M1, HFA384X_EVACK_OFF); - } -#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ - if (ev & HFA384X_EV_ALLOC) { prism2_alloc_ev(dev); HFA384X_OUTW(HFA384X_EV_ALLOC, HFA384X_EVACK_OFF); @@ -3309,13 +3139,6 @@ prism2_init_local_data(struct prism2_helper_functions *funcs, int card_idx, local->io_debug_enabled = 1; #endif /* PRISM2_IO_DEBUG */ -#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) - local->bus_m0_buf = (u8 *) kmalloc(sizeof(struct hfa384x_tx_frame) + - PRISM2_DATA_MAXLEN, GFP_DMA); - if (local->bus_m0_buf == NULL) - goto fail; -#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ - local->func = funcs; local->func->cmd = hfa384x_cmd; local->func->read_regs = hfa384x_read_regs; @@ -3376,12 +3199,6 @@ prism2_init_local_data(struct prism2_helper_functions *funcs, int card_idx, local->auth_algs = PRISM2_AUTH_OPEN | PRISM2_AUTH_SHARED_KEY; local->sram_type = -1; local->scan_channel_mask = 0xffff; -#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) - local->bus_master_threshold_rx = GET_INT_PARM(bus_master_threshold_rx, - card_idx); - local->bus_master_threshold_tx = GET_INT_PARM(bus_master_threshold_tx, - card_idx); -#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ /* Initialize task queue structures */ INIT_WORK(&local->reset_queue, handle_reset_queue, local); @@ -3462,9 +3279,6 @@ while (0) return dev; fail: -#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) - kfree(local->bus_m0_buf); -#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ free_netdev(dev); return NULL; } @@ -3586,9 +3400,6 @@ static void prism2_free_local_data(struct net_device *dev) kfree(bss); } -#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) - kfree(local->bus_m0_buf); -#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ kfree(local->pda); kfree(local->last_scan_results); kfree(local->generic_elem); |